Figure 1

Schematic diagram of the system. The mechanical resonator is capacitively coupled to the LC circuit and dispersively coupled to the optical cavity via the radiation pressure. The circuit consists of a capacitor C and an inductor L. The cavity field is driven by the pump laser with the amplitude E and the LC circuit is driven by a DC bias voltage V. We introduce a voltage modulation switch \(\eta =0,1\) in the circuit and \(V={V_{\mathrm{DC}}\cos (\eta \omega t)}\), where \(\omega =\vert \omega _{0}-\omega _{\mathrm{lc}}\vert \) is modulation frequency